Liverpool’s season has gone off the rails in 2017, with only one win, that coming against fourth-tier Plymouth Argyle in the FA Cup, in 10 matches representing an alarming slump in form.
“At this moment obviously that was not enough,” said Klopp in quotes reported by BBC Sport.
“The first half for sure was not enough. We gave both goals away easily, the overall performance was not like it should be.
“It makes no sense for us to play like this. If we played like we did in the second half for the whole game no team can cope with us. But we need to wake up, that was not acceptable.
“I have a lot of thoughts at the moment and I can’t even say a few of them right now because I really need to think about what happened.
“We had a lot of possession, but what is possession? Possession is only good if you create something. It was not like we expected from ourselves.
“We have to take the criticism, think about, find a few answers and react.”
In trying to find positives from a winless streak that could see Liverpool drop out of the top four if Manchester City win tomorrow, Klopp was pleased that his side continue to create openings, though he admitted some opponents may have got the measure of his system, which for the first half of the season was so potent.
“Yes we have quality still, but we have to show it, it’s not to talk about it or to find excuses,” the German added.
“Maybe a few teams have found a solution to us, but that doesn’t matter because we are making chances and should score goals.
“We have to earn it, deserve it, with the effort that you put into a game. We have to bring the quality that we have consistently. I don’t want to find excuses, it is hard to think of intelligent things to say after a match like this.”